Preparing method for high-strength high-isolation condom comprising modified graphene/latex interlayer

The invention relates to the field of composite materials and medical instruments, in particular to a preparing method for a high-strength high-isolation condom comprising a modified graphene/latex interlayer. The preparing method includes the steps that stable dispersion liquid prepared by modified graphene, latex liquid and common auxiliaries are mixed evenly to prepare compound latex liquid; a three-time impregnation process is adopted for forming, conventional latex liquid is used for impregnation in first-time and third-time impregnation, and the modified graphene/latex compound latex liquid is used as impregnation liquid in second-time impregnation to obtain the condom which is provided with conventional latex films on the innermost surface and the outermost surface and a modified graphene/latex compound material film interlayer in the middle to be of a sandwich structure finally. The prepared composite grapheme condom has the characteristic of blocking penetration of small-size viruses. Tear resistance and other indexes are obviously improved, and the blasting volume and the ultimate elongation rate are obviously increased on the premise of the same size. The high-strength high-isolation condom has the advantages of being scientific in principle, poisonless, harmless, stable in performance and capable of being matched with the current condem production process easily, and characteristics are remarkable.